Seeing black bars at the top and bottom of the iPhone X Simulator

Question

Running my App in the iPhone X Simulator (GM Seed) I am noticing two strange effects:

• the App does not use the full screen space (top and bottom area is black)

Answer 1

iPhone X needs different launch image sized 1125px x 2436px (375pt x 812pt @3x).

Check human interface guidelines for more details.